251 area code
Where the 251 area code is, its overlay and how to dial a +1 251 number from anywhere.
The 251 area code is in Mobile, Alabama, United States (Central (CT)). To call from abroad: +1 251 555-0123.
The 251 area code is a geographic North American Numbering Plan (NANP) code covering Mobile, Alabama. It has been in service since 03-Oct-2000 and sits in the Central (CT) time zone.
How to dial a 251 number
+1 251 555-01231 251 555-0123251 555-0123Cities in the 251 area code
A 251 number is usually in one of these places in Alabama — 1 county.
Other Alabama area codes
Frequently asked questions
Where is the 251 area code?
The 251 area code is in Mobile, Alabama, United States (Central (CT)).
Do I have to dial 10 digits for 251?
Yes — dial the area code plus the seven-digit number.
How do I call a 251 number from another country?
Dial your exit code (or +), then 1, then 251, then the number: +1 251 555-0123.
Source: NANPA numbering plan. An area code covers a region, not a precise address — a 251 number does not pinpoint a street or ZIP code.
Number holders in area code 251
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 542 prefixes are in use in 251, shared by 52 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| Bellsouth Telecomm Inc Dba South Central Bell Tel | 88 | 16% |
| New Cingular Wireless PCS, LLC | 71 | 13% |
| Onvoy, LLC | 66 | 12% |
| Cellco Partnership Dba Verizon Wireless | 38 | 7% |
| Eliska Wireless Ventures Subsidiary I, LLC | 29 | 5% |
| Brightspeed Of Southern Alabama | 29 | 5% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
Complaints about 251 numbers
- Reports to the FTC, last 30 days
- 534
- Recorded messages or robocalls
- 72%
- Rank among area codes
- #176 of 670
- Most reported subjects
- Reducing your debt (credit cards, mortgage, student loans) (201)
- Other (195)
- Dropped call or no message (27)
Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.
Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).
All US area codes United States +1 Map of area code 251 — cities & rate centres